"""
Case Type   : 操作系统类-文件系统故障
Case Name   : 执行TPCC语句时，主机注入故障文件系统inode资源耗尽
Create At   : 2021/7/19
Owner       : @wan005
Description :
    1、主节点上执行TPCC
    2、注入文件系统inode资源耗尽故障
    3、清理故障
    4、检查数据一致性
    5、恢复环境
Expect      :
    1、执行成功
    2、故障注入成功 TPCC成功
    3、故障恢复成功
    4、数据一致
    5、恢复环境
History     :
    Modified by @wan005 2021/8/17: 增加故障线程等待时间
    Modified by @wan005 2022/4/21: 优化期望结果
"""
import time
import unittest

from testcase.utils.ComThread import ComThread
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.CommonSH import RestartDbCluster
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node, macro


class ReliabilityFileSystem(unittest.TestCase):
    nodes = ("PrimaryDbUser", "Standby1DbUser", "Standby2DbUser")

    @RestartDbCluster(*nodes)
    def setUp(self):
        self.log = Logger()
        self.primary_sh = CommonSH(self.nodes[0])
        self.sta1_sh = CommonSH(self.nodes[1])
        self.sta2_sh = CommonSH(self.nodes[2])
        self.primary_root_node = Node(node="PrimaryRoot")
        self.constant = Constant()
        self.com = Common()
        self.log.info("setUp-实例化:ok")

        self.log.info("Opengauss_Reliability_OS_File_System_Case002:开始执行")
        self.file_name = macro.DB_INSTANCE_PATH
        self.inject_cmd = f"rfile_ideplenish_workmode " \
                          f"(filename, workmode) " \
                          f"values ({self.file_name}, fore)"
        self.clean_cmd = f"rfile_ideplenish_workmode where " \
                         f"filename={self.file_name} and workmode=fore"

    def test_main(self):
        try:
            self.log.info("步骤1:主节点注入文件系统inode资源故障")
            self.log.info("注入故障")
            session = ComThread(self.com.cfe_inject,
                                args=(self.primary_root_node,
                                      self.inject_cmd))
            session.setDaemon(True)
            session.start()

            session.join(60 * 50)
            result = session.get_result()
            self.log.info("故障注入结果")
            self.log.info(result)
            self.assertIn("successful execution", result)

            result = self.com.get_sh_result(self.primary_root_node,
                                            "df -i")
            self.log.info(result)

            self.log.info("步骤2:连接主机执行TPCC")
            self.log.info("-------------------------------------------")
            result = self.com.startTPCC(self.primary_root_node,
                                        macro.TPCC_PATH)
            self.log.info(result)
            self.assertNotIn(self.constant.TPCC_SUCCESS_MSG, result)
            self.log.info("-------------------------------------------")

        finally:
            self.log.info("步骤3:清除故障")
            result = self.com.cfe_clean(self.primary_root_node,
                                        self.clean_cmd)
            self.log.info(result)
            self.assertIn("successful execution", result)

            db_status = self.primary_sh.getDbClusterStatus("detail")
            self.log.info(db_status)
            if not ("Degraded" in db_status or "Normal" in db_status):
                result = self.primary_sh.executeGsctl("restart",
                                                      "server started",
                                                      get_detail=True)
                self.log.info(result)
                self.assertIn("server started", result)

                db_status = self.primary_sh.getDbClusterStatus("detail")
                self.log.info(db_status)
                self.assertTrue("Degraded" in db_status
                                or "Normal" in db_status)

            result = self.com.startTPCC(self.primary_root_node,
                                        macro.TPCC_PATH)
            self.log.info(result)
            self.assertIn(self.constant.TPCC_SUCCESS_MSG, result)

        db_status = self.primary_sh.getDbClusterStatus("detail")
        self.log.info(db_status)
        self.assertTrue("Degraded" in db_status or "Normal" in db_status)

        self.log.info('检查主备是否同步')
        time.sleep(10)
        self.log.info('获取节点数量')
        node_num = self.primary_sh.get_node_num()
        res = self.primary_sh.check_location_consistency("primary", node_num)
        self.assertTrue(res)

        self.log.info('步骤4:检查数据一致性')
        nodes = (Node(self.nodes[0]), Node(self.nodes[1]),
                 Node(self.nodes[2]))
        flag = self.com.check_data_sample_by_all(r'\d', *nodes)
        self.assertTrue(flag)
        table_dict = self.com.format_sql_result(
            self.primary_sh.executDbSql(r'\d'))
        table_name = table_dict.get('Name')
        for name in table_name:
            select_sql = f'select count(*) from {name};'
            flag = self.com.check_data_sample_by_all(select_sql, *nodes)
            self.assertTrue(flag)

    def tearDown(self):
        self.log.info("步骤5:环境清理")
        result = self.com.cfe_clean(self.primary_root_node,
                                    self.clean_cmd)
        self.log.info(result)
        self.assertIn("successful execution", result)
        self.log.info("故障已清理")
        self.log.info("Opengauss_Reliability_OS_File_System_Case002:执行完成")
